in general bounty programs and airdrops can both give away crypto for free, and I think this is a very effective way to get prizes that can make you rich, but since the crypto market is in a prolonged bear market method, very much Bounty participants stop for a moment, because bounties and airdrops have no potential and certainty at all, and prefer to buy coins to invest.
I've been participating in bounties and doing airdrops rarely since 2018. Cant say that I am rich. During these years I have learned, that holding coin or token, received from bounty or airdrop is a big no, as with every market mood change, this alts price never recover. What I am trying to say, that bounties and airdrops wont make you rich. If by the moment reward is distributed you altcoin did not make you rich, dont expect to become one in future. With current bounty budgets, chances of becoming rich is close to zero.